6PC: Alloy Differential + Reduction Gear + Driveshaft Assembly. 4PC: Driveshaft Assembly. Upgraded Alloy Differential: Enhances durability and performance for smoother power transmission in RC models.
6pc 4pc Alloy Differential Gear Set Compatible with For WLtoys RC Car Models
6pc 4pc Alloy Differential Gear Kit for For WLtoys 124019 124018 RC Car Parts
